Display screen with a graphical user interface



The sole FIGURE is a front view of a display screen with a graphical user interface showing the new design.

The broken lines of uneven length show the display screen and form no part of the claimed design. The broken lines of short even length depict portions of the display screen with graphical user interface that forms no part of the claim design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 